HG/T 6283-2024 in English
VALIDCatalytic cracking of light olefins promoter
- Issued on:2024-03-29
- Implemented on:2024-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$291.00
| Standard No: | HG/T 6283-2024 |
| Document status: | VALID |
| Title in English: | Catalytic cracking of light olefins promoter |
| Title in Chinese: | 催化裂化低碳烯烃助催化剂 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-03-29 |
| Implemented on: | 2024-10-01 |
| ICS Classification: | 71.100.99-Other products of the chemical industry |
| Chinese Classification: | G75-Catalyst |
| Professional Classification: | HG-Chemistry |
Introduction
Analysis of Standard Technical Framework
| Core Indicators | Technical Requirements | Test Methods |
|---|---|---|
| Alumina Content | ≥20.0% | NB/SH/T 0961 |
| Propylene Yield Increase | ≥2.5% | Appendix A ACE Evaluation Method |
| Particle Size Distribution | 0-149μm≥89% | NB/SH/T 0951 |
Analysis of key technical requirements
The semi-synthetic catalyst specified in the standard must meet 8 physical and chemical indicators:
- Pore volume ≥0.20mL/g (determined by water drop method)
- Specific surface area ≥100m²/g (static nitrogen adsorption method)
- Apparent bulk density 0.68-0.85g/mL
Among them, the propylene yield increase rate is the core performance indicator, which is measured by ACE fixed fluidized bed device (reaction temperature 500±1℃), requiring that the propylene yield increase by ≥2.5% after adding 10% additive.
Innovative points of test method
Appendix A Key points of normative test
| Key parameters | Control requirements |
|---|---|
| Standard raw oil density | 0.905-0.915g/cm³ |
| Catalyst aging conditions | 800℃/100% water vapor 17h |
| Gas chromatography column | HP-PLOT/Al2O3 capillary column |
The test adopts the double parallel sample comparison method: the standard balancing agent (9.000g) and the mixed sample with 10% additive added (8.100g+0.900g) are tested simultaneously, and the yield increase rate is calculated by the formula Δω=(ωmixed-ωbase).
Recommendations for the implementation of the standard
- Production process control: Focus on the sodium oxide content (≤0.15%) and loss on ignition (≤13%)
- Packing specifications: 60kg package adopts a three-layer moisture-proof structure, and the container bag must comply with the requirements of GB/T10454
- Application guidance: It is recommended to mix with the main catalyst at a ratio of 5-15%, and the reaction temperature is 480-520℃
Technology evolution analysis
This standard clarifies for the first time the propylene selectivity index of low-carbon olefin co-catalyst. Compared with traditional catalysts:
- The pore volume requirement is reduced by 30% (the original standard is ≥0.28mL/g)
- Added particle size distribution D(V,0.5)=68-85μm control
- Introduced X-ray fluorescence spectrometry to determine rare earth content
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